private async void WebSocketDataReceiver()
{
while (_isRunning && !_cancellationTokenSource.Token.IsCancellationRequested)
{
try
{
// websocket client receive data from stream
byte[] incomingData = await
OODSSPlatformSpecifics.Get()
.ReceiveMessageFromWebSocketClientAsync(
_webSocketClient, _readBuffer,
_cancellationTokenSource.Token);
// process the byte data
long uid = BitConverter.ToInt64(incomingData, 0);
string message = Encoding.UTF8.GetString(incomingData, 8, incomingData.Length - 8);
Debug.WriteLine("Got the message: " + message + " uid: " + uid);
ProcessString(message, uid);
}
catch (OperationCanceledException e)
{
Debug.WriteLine("DataReceiver: The operation was cancelled." + e.CancellationToken);
break;
}
catch (Exception e)
{
Debug.WriteLine("DataReceiver: The operation was cancelled.");
break;
}
}
}
private bool CreateConnection()
{
if (!Connected())
{
OODSSPlatformSpecifics.Get().ConnectWebSocketClientAsync(_webSocketClient, _serverUri, CancellationToken.None);
}
return(Connected());
}
/// <summary>
/// prepare the message and send it to the websocket server
/// </summary>
/// <param name="requestObject"></param>
private async Task CreatePacketFromMessageAndSend(RequestQueueObject requestObject)
{
long uid = requestObject.Uid;
string requestString = GenerateStringFromRequest(requestObject.RequestMessage);
byte[] uidBytes = BitConverter.GetBytes(uid);
byte[] messageBytes = Encoding.UTF8.GetBytes(requestString);
byte[] outMessage = new byte[uidBytes.Length + messageBytes.Length];
Buffer.BlockCopy(uidBytes, 0, outMessage, 0, uidBytes.Length);
Buffer.BlockCopy(messageBytes, 0, outMessage, uidBytes.Length, messageBytes.Length);
await OODSSPlatformSpecifics.Get().SendMessageFromWebSocketClientAsync(_webSocketClient, outMessage);
}
/// <summary>
/// Starting the client, setting up the websocketclient
/// </summary>
public async Task <bool> StartAsync()
{
_isRunning = true;
_cancellationTokenSource = new CancellationTokenSource();
//_cancellationTokenSource.Token.Register(PerformDisconnect);
String uri = WebSocketPrefix + ServerAddress + ":" + PortNumber;
// create and connect
_webSocketClient = OODSSPlatformSpecifics.Get().CreateWebSocketClientObject();
// connect to the server
await OODSSPlatformSpecifics.Get().ConnectWebSocketClientAsync(_webSocketClient, new Uri(uri),
_cancellationTokenSource.Token);
OODSSPlatformSpecifics.Get().CreateWorkingThreadAndStart(SendMessageWorker, ReceiveMessageWorker, WebSocketDataReceiver, _cancellationTokenSource.Token);
return(await ConnectOODSSServerAsync());
}
private bool Connected()
{
return(OODSSPlatformSpecifics.Get().WebSocketIsConnected(_webSocketClient));
}
private void PerformDisconnect()
{
Debug.WriteLine("Performing Disconnect");
OODSSPlatformSpecifics.Get().DisconnectWebSocketClientAsync(_webSocketClient);
}
